package PTA_7_51;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String name = scan.next();
        String set = scan.next();
        String key_name = "SwpuIot";
        String key_set = "123456";
        if(key_set.equals(set)&&key_name.equals(name))
            System.out.println("Welcome");
        else if(key_set.equals(set)==false&&key_name.equals(name)==true)
            System.out.println("Mismatch");
        else
            System.out.println("NotExist");
    }
}
